My base.html template, which is extended in nearly all of my pages, contains a header that I never want to be cached since it contains the username of the current user. I have two pages where it keeps getting cached though.
I tried adding a {% cache 0 base request.user.username %} for the header, but to no avail.
I don't want to have to add a @never_cache since I want to keep most of the DOM cached. Is there a way to add a never_cache decorator/functionality to my extended base.html only?
settings.py:
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, 'templates')],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
(Simplified) Base template:
<!doctype html>
<html lang="en">
<head>
...
</head>
<body>
{% block content %}
{% endblock content %}
{% block postman_menu %}
{% endblock postman_menu %}
{% cache 0 base request.user.username %}
<header>
<nav class="nav">
{% if user.is_authenticated %}
<ul class="styled-list">
<li>Home</li>
<li>Browse</li>
<li>Inbox</li>
<li>Activity</li>
<li>{{ request.user.username }}</li>
</ul>
{% else %}
<ul class="styled-list">
<li>Home</li>
<li>About</li>
<li>Log In</li>
<li>Sign up</li>
</ul>
{% endif %}
</nav>
</header>
{% endcache %}
</body>
</html>
I don't have a view defined for my base template, but one of the pages that is giving me problems by caching my header is my browse page, which is defined below.
Views.py:
@login_required(login_url='login')
def browse(request):
block_list = None
user_list = None
post_list = None
neighbor_list = None
main_blocks = Block.objects.filter(name__in=current_blocks).order_by('-date_created')
user = request.user
query = request.GET.get("q")
if query:
block_list = Block.objects.filter(Q(name__icontains=query) | Q(tags__slug__icontains=query)).distinct()
neighbor_list = user.neighbors.filter(Q(first_name__icontains=query) | Q(last_name__icontains=query) | Q(username__icontains=query)).distinct()
user_list = CustomUser.objects.filter(Q(first_name__icontains=query) | Q(last_name__icontains=query) | Q(username__icontains=query)).distinct()
post_list = Post.objects.filter(Q(tags__slug__icontains=query) | Q(title__icontains=query)).distinct().order_by('-published')
if neighbor_list and user_list:
user_list = neighbor_list | user_list
context = {'block_list': block_list, 'user_list': user_list, 'post_list': post_list, 'main_blocks': main_blocks}
return render(request, 'browse.html', context)
(Simplified) Browse Template:
{% extends 'base.html' %}
{% load static %}{% load cache %}
{% block title %} Browse {% endblock title %}
{% block content %}
<div class="browse go-left">
{% cache 300 browseSearch request.user.username %}
<div class="search-bar-container">
<form action="" id="browse-form" method="get">
<div class="search-line">
<input type="text" name="q" aria-label="Search" placeholder="Search blocks, users, and posts" class="search-bar" value="{{ request.GET.q }}">
</div>
<button type="submit" value="Search">Search</button>
</form>
</div>
{% endcache %}
{% if request.GET.q is not None %}
...code to display search results...
{% else %}
{% cache 300 browseIntro request.user.username %}
...code to display blocks...
{% endcache %}
{% endif %}
</div>
{% endblock content %}
